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Finding the Fourth Proportional to 968.94, 1,451.58 and 773.94

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Solution

The fourth proportional to 968.94, 1,451.58 and 773.94 is: 1,159.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    968.94 : 1,451.58 = 773.94 : x
  2. Step 2: Convert to fraction form
    968.94/1,451.58 = 773.94/x
  3. Step 3: Cross multiply
    968.94x = 1,451.58 × 773.94
  4. Step 4: Simplify right side
    968.94x = 1,123,435.83
  5. Step 5: Solve for x
    x = 1,123,435.83/968.94
  6. Step 6: Final answer
    x = 1,159.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.